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Isothermal crystallization kinetics and morphology of PP/TiO 2 nanocomposites using titanium n ‐butoxide precursor
Author(s) -
Silva Rodrigo,
Oliveira Ricardo
Publication year - 2015
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22968
Subject(s) - crystallinity , materials science , crystallization , nucleation , polypropylene , nanocomposite , chemical engineering , isothermal process , kinetics , avrami equation , morphology (biology) , spherulite (polymer physics) , crystal (programming language) , titanium dioxide , composite material , crystallization of polymers , polymer , thermodynamics , physics , genetics , quantum mechanics , biology , computer science , engineering , programming language
This study investigates the influence of the addition of TiO 2 , obtained by hydrolysis–condensation reaction of titanium dioxide precursors, on the kinetics of polypropylene (PP) isothermal crystallization. The dispersion of nanoparticle and its relation to the degree of crystallinity by XRD was also investigated. The results indicated that the addition of the TiO 2 increased the degree of crystallinity of PP and its crystallization temperature. Likewise, the nucleation and crystal growth processes were also affected, as indicated by the TEM morphology, the Avrami kinetic model, and the optical microscopy, in which a nucleation effect was detected. POLYM. COMPOS. 36:517–526, 2015. © 2014 Society of Plastics Engineers